A ground rod

Abstract

The utility model relates to power maintenance equipment technical field, concretely is a grounding rod, including cylindrical body and adjusting mechanism, the bottom end of body is tapered, the inside of body is equipped with vertical cylindrical cavity, three vertical and cavity intercommunication limit grooves are equidistantly seted up on the outer wall of body along its circumference direction, the horizontal sliding connection of limit groove has the anchor plate, adjusting mechanism is established at the top of body and is connected with three anchor plates transmission for driving three anchor plates synchronous reverse movement. The utility model discloses through adjusting mechanism drive three anchor plates synchronous extension, and multiple anchor teeth on the anchor plate embed the surrounding soil, form the composite fixed structure of " surface contact and point and hold fast", increase the contact area and friction force with the soil. Compared with the traditional single columnar structure, can effectively resist the inclination, loose tendency, especially applicable to the complex soil environment of soft or many sandstone.

Description

Technical Field

[0001] This utility model relates to the field of power maintenance equipment technology, specifically to a grounding rod. Background Technology

[0002] In scenarios such as power maintenance and power system grounding protection, grounding rods are key equipment for ensuring operational safety and system stability. They need to be inserted into the ground to form a good electrical connection and mechanical fixation. Existing grounding rods are mostly single cylindrical structures with a tapered bottom for easy insertion, but this presents the following problems in practical use.

[0003] 1. Insufficient stability: After being inserted into the ground, it is fixed only by the friction between the columnar body and the soil. In soft soil, gravel, or when affected by external forces (such as vibration or wind), it is prone to tilting, loosening, or even being pulled out, resulting in a decrease in grounding effect and posing a safety hazard.

[0004] 2. Poor adaptability: Different soil textures (such as clay, sand, and frozen soil) have different requirements for fixing force. Existing grounding rods cannot adjust the contact area or gripping force with the soil according to soil conditions, making it difficult to ensure stable grounding in complex terrain.

[0005] 3. Low ease of operation: Although some grounding rods have added a spiral structure to assist insertion, there is no secondary fixing mechanism after insertion; if stronger fixing is required, additional auxiliary components need to be installed, which is cumbersome and inefficient.

[0006] 4. Difficult to retrieve: When inserted deep or in soil with high viscosity, the grounding rod has a strong adhesion to the soil, and it is time-consuming and laborious to pull it out by hand. Especially after maintenance work is completed, the retrieval process affects the overall work efficiency. Utility Model Content

[0007] The purpose of this invention is to provide a grounding rod to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a grounding rod, comprising a cylindrical body and an adjustment mechanism, wherein the bottom end of the body is conical, and a vertical cylindrical cavity is formed inside the body; three vertical limiting grooves communicating with the cavity are equidistantly formed along the circumference of the outer wall of the body; anchor plates are horizontally slidably connected in the limiting grooves; and the adjustment mechanism is located at the top of the body and is drivenly connected to the three anchor plates to drive the three anchor plates to move synchronously in opposite directions.

[0009] Furthermore, the adjustment mechanism includes a hexagonal mounting base on the top of the main body and a drive disk rotatably connected to the upper end of the mounting base and the bottom of the cavity; the drive disk has three arc-shaped slots equidistantly spaced along its circumference, and the upper and lower ends of the anchor plate are provided with sliding rods, which are located in the slots and slide in cooperation with the slots; a rotating seat is provided on the drive disk located at the upper end of the mounting base.

[0010] Furthermore, a positioning screw is threadedly connected to the rotating seat, and a positioning hole is provided on the mounting seat, with the positioning screw threadedly engaging with the positioning hole.

[0011] Furthermore, the anchor plate is provided with a plurality of anchoring teeth along its length.

[0012] Furthermore, a rotating handle is detachably connected to the mounting base.

[0013] Furthermore, the bottom of the body is provided with helical blades.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses an adjustment mechanism to drive three anchor plates to extend synchronously. Multiple anchoring teeth on the anchor plates embed into the surrounding soil, forming a composite fixing structure of "surface contact and point gripping," increasing the contact area and friction with the soil. Compared to traditional single columnar structures, it can effectively resist tilting and loosening, and is especially suitable for complex soil environments with soft soil or abundant sand and gravel.

[0016] 2. The extension length of the anchor plate of this utility model can be flexibly adjusted by the drive plate, and the gripping force can be adjusted according to the soil texture (such as clay requiring a small extension and sand requiring a large extension), which solves the problem of poor adaptability of existing grounding rods to soil types and ensures reliable fixation in different scenarios.

[0017] 3. The spiral blades at the bottom of the main body of this utility model, combined with the conical bottom end, allow the grounding rod to be easily screwed into the ground by rotating the handle, reducing the difficulty of insertion; the adjustment mechanism adopts the transmission design of arc groove and slide rod, and the synchronous extension and retraction of the three anchor plates can be achieved by simply rotating the rotating seat, making the operation simple and labor-saving; the positioning screw can lock the position of the anchor plate, preventing retraction caused by vibration during operation and ensuring a stable fixed state.

[0018] 4. When recycling, this utility model only requires rotating the rotating seat in the opposite direction to retrieve the anchor plate, and then rotating the handle in the opposite direction to unscrew the main body, which solves the problem that traditional grounding rods are difficult to pull out due to strong adsorption force, and improves the reusability and work efficiency of the equipment.

[0019] 5. When the anchor plate is retracted, it is stored in the limiting groove of the main body without increasing the volume of the equipment, which facilitates transportation and storage; key components such as the drive plate and slide bar are protected by positioning screws and protective designs (such as baffles) to reduce the intrusion of soil impurities and extend their service life. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a rear view of the present invention;

[0022] Figure 3 This is a bottom view of the present invention;

[0023] Figure 4 This is a cross-sectional view of the present invention;

[0024] Figure 5 This is a structural diagram of the anchor plate of this utility model.

[0025] In the picture:

[0026] 1. Body; 2. Limiting groove; 3. Anchor plate; 4. Mounting base; 5. Drive disc; 6. Groove; 7. Slide rod; 8. Rotating seat; 9. Positioning screw; 10. Anchoring teeth; 11. Rotating handle; 12. Helical blade. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1-5 As shown, this utility model discloses a grounding rod, including a cylindrical body 1 and an adjustment mechanism. The adjustment mechanism, used in conjunction with the body 1, makes the grounding rod more stable when inserted into the ground.

[0029] Specifically,

[0030] The bottom end of the body 1 is conical, and a spiral blade 12 is provided above the bottom end of the body 1. A vertical cylindrical cavity is provided inside the body 1, and three vertical limiting grooves 2 that are equidistant from each other along the circumference of the outer wall of the body 1 are provided and communicate with the cavity. Dovetail grooves are provided at both the upper and lower ends of the limiting grooves 2. Anchor plates 3 are horizontally slidably connected in the dovetail grooves. Each of the three anchor plates 3 has multiple anchor teeth 10 along its length.

[0031] The adjustment mechanism consists of a hexagonal mounting base 4, a drive disc 5, and a rotating base 8. The mounting base 4 is fixed to the top of the main body 1 by threads or welding. The center of the mounting base 4 is open and coaxial with the cavity. Two rotating handles 11 are symmetrically and detachably connected to the mounting base 4 by bolts. Two drive discs 5 are provided, rotatably connected to the upper end of the mounting base 4 and the bottom of the cavity respectively by bearings. Each drive disc 5 has three arc-shaped slots 6 equidistantly spaced along its circumference. Sliding rods 7 are welded to the upper and lower ends of the three anchor plates 3. The sliding rods 7 at the upper and lower ends of the three anchor plates 3 are respectively located within the six slots 6 on the two drive discs 5, and the sliding rods 7 can slide within the corresponding slots 6 (e.g., ...). Figure 2 (As shown in the figure); the rotating seat 8 is fixedly installed on the drive disk 5 located at the upper end of the mounting seat 4. Rotating the rotating seat 8 can drive the drive disk 5 to rotate, thereby causing the three anchor plates 3 to slide out or retract from the three limit grooves 2. In actual use, baffles (not shown in the figure) can be added to the rotating seat 8 according to the site requirements to prevent soil and other factors from affecting the service life of the drive disk 5.

[0032] The rotating seat 8 is threaded with a positioning screw 9, and the mounting seat 4 has multiple positioning holes. The positioning screw 9 is threaded into the multiple positioning holes to fix the position of the drive disk 5 after rotation.

[0033] Working principle of this utility model:

[0034] I. Work Process

[0035] During use, the grounding rod is moved to the installation position by rotating the handle 11 on the mounting base 4. At this time, the anchor plate 3 is retracted into the limiting groove 2 of the body 1 in the initial state of the adjustment mechanism to avoid being obstructed by soil during insertion.

[0036] When it is necessary to insert it into the ground, use the conical structure at the bottom of the main body 1 to align with the ground, and rotate the main body 1 by turning the handle 11, or rotate the mounting base 4 with a tool (such as a wrench). The conical bottom can quickly break through the ground surface, and the spiral blades 12 at the bottom of the main body 1 cut into the soil as it rotates, using the spiral force to gradually screw the main body 1 into the ground until the preset depth is reached (the spiral blades 12 can also initially enhance the friction between the grounding rod and the soil to prevent it from easily shaking after insertion).

[0037] After the grounding rod is inserted into place, the drive disc 5 located on the upper end of the mounting base 4 is rotated by the rotating base 8 (tools such as wrenches can be added to the rotating base 8 to assist rotation). When the drive disc 5 rotates, its circumferential arc-shaped groove 6 rotates synchronously. The sliding rod 7 (connected to the upper and lower ends of the anchor plate 3) in the groove 6 is guided by the arc-shaped groove 6, causing the anchor plate 3 to slide horizontally outward along the limiting groove 2. The three anchor plates 3 extend synchronously from the three limiting grooves 2, and the multiple anchoring teeth 10 on the anchor plates 3 are inserted into the surrounding soil. By increasing the contact area and friction with the soil, the grounding rod is further fixed, preventing it from loosening or tilting in the soil.

[0038] After the anchor plate 3 is unfolded to the appropriate position, screw the positioning screw 9 on the rotating seat 8 into the corresponding positioning hole of the mounting seat 4. The position of the drive plate 5 is fixed by the threaded engagement to prevent the anchor plate 3 from retracting due to soil pressure or vibration. Then remove the two rotating handles 11 (the specific removal depends on the actual use requirements, or they can be left as is).

[0039] When the grounding rod is damaged and needs to be replaced, or when it is no longer in use, unscrew the positioning screw 9 in the reverse direction, and then rotate the drive disc 5 in the reverse direction through the rotating seat 8 to retract the anchor plate 3 into the limiting groove 2; install the rotating handle 11, and rotate the body 1 in the reverse direction by rotating the handle 11 or the mounting seat 4, and use the reverse spiral force of the spiral blade 12 to pull the grounding rod out of the soil. Finally, remove the rotating handle 11 (if storage is required).

[0040] II. Working Principle

[0041] The core principle of this invention is to achieve the telescopic adjustment of the anchor plate through mechanical transmission, thereby enhancing the stability of the grounding rod with the soil. Specifically, it includes:

[0042] By utilizing the conical structure at the bottom of the main body 1 and the spiral design of the spiral blade 12, the rotational force is converted into axial cutting force, enabling the grounding rod to be inserted into the soil efficiently, thus solving the problem that traditional grounding rods are prone to loosening when inserted by gravity alone.

[0043] In the adjustment mechanism, the arc-shaped groove 6 of the drive disc 5 and the slide rod 7 of the anchor plate 3 form a sliding fit. When the drive disc 5 rotates, the curved trajectory of the arc-shaped groove 6 converts the rotational motion into the horizontal linear motion of the slide rod 7, which drives the three anchor plates 3 to move synchronously in opposite directions (outward or inward) to ensure uniform force and avoid unilateral tilting.

[0044] After the anchor plate 3 extends, the anchor teeth 10 on it are embedded in the soil. Through the combination of "point (anchor teeth) + surface (anchor plate)" contact, the static friction between the grounding rod and the soil is increased. Combined with the initial fixation of the spiral blade 12, a "double stability" structure is formed, which is suitable for complex soil environments such as soft or sandy soil.

[0045] The positioning screw 9 is threaded into the positioning hole of the mounting base 4, which can lock the position of the drive plate 5, ensuring that the anchor plate 3 is always in the unfolded state during operation, and avoiding positional displacement caused by external force.

[0046] Through the above structural design and working principle, the grounding rod achieves the integrated functions of "efficient insertion, stable fixation, and convenient recycling", which is suitable for scenarios with high stability requirements in power maintenance.

Claims

1. A grounding rod, comprising a cylindrical body (1) and an adjusting mechanism, wherein the bottom end of the body (1) is tapered, characterized in that, The body (1) has a vertical cylindrical cavity inside. The outer wall of the body (1) has three vertical limiting grooves (2) that are equidistant from each other along its circumference and communicate with the cavity. Anchor plates (3) are horizontally slidably connected in the limiting grooves (2). The adjustment mechanism is located at the top of the body (1) and is connected to the three anchor plates (3) for driving the three anchor plates (3) to move synchronously in opposite directions.

2. The grounding rod as described in claim 1, characterized in that, The adjustment mechanism includes a hexagonal mounting base (4) on the top of the main body (1) and a drive disk (5) rotatably connected to the upper end of the mounting base (4) and the bottom of the cavity; the drive disk (5) has three arc-shaped slots (6) equidistantly spaced along its circumference; the upper and lower ends of the anchor plate (3) are provided with sliding rods (7); the sliding rods (7) are located in the slots (6) and slide in cooperation with the slots (6); the drive disk (5) located at the upper end of the mounting base (4) is provided with a rotating seat (8).

3. The grounding rod as described in claim 2, characterized in that, The rotating seat (8) is threaded with a positioning screw (9), and the mounting seat (4) is provided with a positioning hole, and the positioning screw (9) is threadedly engaged with the positioning hole.

4. The grounding rod as described in claim 2, characterized in that, The anchor plate (3) is provided with multiple anchor teeth (10) along its length.

5. The grounding rod as described in claim 2, characterized in that, A rotating handle (11) is detachably connected to the mounting base (4).

6. The grounding rod as described in claim 1, characterized in that, The bottom of the body (1) is provided with a spiral blade (12).

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